CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6305 vulnerabilities reference this CWE, most recent first.
GHSA-FP8R-6WJQ-G9CW
Vulnerability from github – Published: 2022-05-14 03:24 – Updated: 2022-05-14 03:24In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 615/16/SD 415, and SD 810, possible null pointer dereference occurs due to failure of memory allocation when a large value is passed for buffer allocation in the Playready App.
{
"affected": [],
"aliases": [
"CVE-2015-9127"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-18T14:29:00Z",
"severity": "CRITICAL"
},
"details": "In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 615/16/SD 415, and SD 810, possible null pointer dereference occurs due to failure of memory allocation when a large value is passed for buffer allocation in the Playready App.",
"id": "GHSA-fp8r-6wjq-g9cw",
"modified": "2022-05-14T03:24:57Z",
"published": "2022-05-14T03:24:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-9127"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2018-04-01"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103671"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPCP-87J2-PF32
Vulnerability from github – Published: 2024-12-27 15:31 – Updated: 2025-01-15 21:31In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: fix crash when unbinding
If there is an error during some initialization related to firmware, the function ath12k_dp_cc_cleanup is called to release resources. However this is released again when the device is unbinded (ath12k_pci), and we get: BUG: kernel NULL pointer dereference, address: 0000000000000020 at RIP: 0010:ath12k_dp_cc_cleanup.part.0+0xb6/0x500 [ath12k] Call Trace: ath12k_dp_cc_cleanup ath12k_dp_free ath12k_core_deinit ath12k_pci_remove ...
The issue is always reproducible from a VM because the MSI addressing initialization is failing.
In order to fix the issue, just set to NULL the released structure in ath12k_dp_cc_cleanup at the end.
{
"affected": [],
"aliases": [
"CVE-2024-53188"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-27T14:15:26Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix crash when unbinding\n\nIf there is an error during some initialization related to firmware,\nthe function ath12k_dp_cc_cleanup is called to release resources.\nHowever this is released again when the device is unbinded (ath12k_pci),\nand we get:\nBUG: kernel NULL pointer dereference, address: 0000000000000020\nat RIP: 0010:ath12k_dp_cc_cleanup.part.0+0xb6/0x500 [ath12k]\nCall Trace:\nath12k_dp_cc_cleanup\nath12k_dp_free\nath12k_core_deinit\nath12k_pci_remove\n...\n\nThe issue is always reproducible from a VM because the MSI addressing\ninitialization is failing.\n\nIn order to fix the issue, just set to NULL the released structure in\nath12k_dp_cc_cleanup at the end.",
"id": "GHSA-fpcp-87j2-pf32",
"modified": "2025-01-15T21:31:40Z",
"published": "2024-12-27T15:31:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53188"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1304446f67863385dc4c914b6e0194f6664ee764"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2eec88c0fa63f8ad35704a8c9df0b5bd8694fcda"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/488d2959c28621e52b3cce118a813a4bc18bb3d1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/81da9c0854545c3188ca2a09afe7cb65f9c012b5"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPCP-9H7M-FFPX
Vulnerability from github – Published: 2022-02-09 23:33 – Updated: 2024-11-13 22:16Impact
When building an XLA compilation cache, if default settings are used, TensorFlow triggers a null pointer dereference:
string allowed_gpus =
flr->config_proto()->gpu_options().visible_device_list();
In the default scenario, all devices are allowed, so flr->config_proto is nullptr.
Patches
We have patched the issue in GitHub commit e21af685e1828f7ca65038307df5cc06de4479e8. The fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow 2.5.3, as these are also affected and still in supported range.
For more information
Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.6.0"
},
{
"fixed": "2.6.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.7.0"
},
{
"fixed": "2.7.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.7.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.6.0"
},
{
"fixed": "2.6.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.7.0"
},
{
"fixed": "2.7.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.7.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.6.0"
},
{
"fixed": "2.6.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.7.0"
},
{
"fixed": "2.7.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.7.0"
]
}
],
"aliases": [
"CVE-2022-23595"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2022-02-04T18:12:23Z",
"nvd_published_at": "2022-02-04T23:15:00Z",
"severity": "MODERATE"
},
"details": "### Impact\nWhen [building an XLA compilation cache](https://github.com/tensorflow/tensorflow/blob/274df9b02330b790aa8de1cee164b70f72b9b244/tensorflow/compiler/jit/xla_platform_info.cc#L43-L104), if default settings are used, TensorFlow triggers a null pointer dereference:\n\n```cc \n string allowed_gpus =\n flr-\u003econfig_proto()-\u003egpu_options().visible_device_list();\n``` \n \nIn the default scenario, all devices are allowed, so `flr-\u003econfig_proto` is `nullptr`.\n \n### Patches\nWe have patched the issue in GitHub commit [e21af685e1828f7ca65038307df5cc06de4479e8](https://github.com/tensorflow/tensorflow/commit/e21af685e1828f7ca65038307df5cc06de4479e8).\nThe fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow 2.5.3, as these are also affected and still in supported range.\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.",
"id": "GHSA-fpcp-9h7m-ffpx",
"modified": "2024-11-13T22:16:53Z",
"published": "2022-02-09T23:33:17Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-fpcp-9h7m-ffpx"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23595"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/e21af685e1828f7ca65038307df5cc06de4479e8"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2022-103.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2022-158.yaml"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/blob/274df9b02330b790aa8de1cee164b70f72b9b244/tensorflow/compiler/jit/xla_platform_info.cc#L43-L104"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Null pointer dereference in TensorFlow "
}
GHSA-FPGV-FC8M-FMMM
Vulnerability from github – Published: 2024-05-17 15:31 – Updated: 2024-11-08 00:30In the Linux kernel, the following vulnerability has been resolved:
icmp: prevent possible NULL dereferences from icmp_build_probe()
First problem is a double call to __in_dev_get_rcu(), because the second one could return NULL.
if (__in_dev_get_rcu(dev) && __in_dev_get_rcu(dev)->ifa_list)
Second problem is a read from dev->ip6_ptr with no NULL check:
if (!list_empty(&rcu_dereference(dev->ip6_ptr)->addr_list))
Use the correct RCU API to fix these.
v2: add missing include
{
"affected": [],
"aliases": [
"CVE-2024-35857"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-17T15:15:23Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nicmp: prevent possible NULL dereferences from icmp_build_probe()\n\nFirst problem is a double call to __in_dev_get_rcu(), because\nthe second one could return NULL.\n\nif (__in_dev_get_rcu(dev) \u0026\u0026 __in_dev_get_rcu(dev)-\u003eifa_list)\n\nSecond problem is a read from dev-\u003eip6_ptr with no NULL check:\n\nif (!list_empty(\u0026rcu_dereference(dev-\u003eip6_ptr)-\u003eaddr_list))\n\nUse the correct RCU API to fix these.\n\nv2: add missing include \u003cnet/addrconf.h\u003e",
"id": "GHSA-fpgv-fc8m-fmmm",
"modified": "2024-11-08T00:30:45Z",
"published": "2024-05-17T15:31:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35857"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/23b7ee4a8d559bf38eac7ce5bb2f6ebf76f9c401"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3e2979bf080c40da4f7c93aff8575ab8bc62b767"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/599c9ad5e1d43f5c12d869f5fd406ba5d8c55270"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c58e88d49097bd12dfcfef4f075b43f5d5830941"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d68dc711d84fdcf698e5d45308c3ddeede586350"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-FPHH-62QM-FM76
Vulnerability from github – Published: 2024-07-29 18:30 – Updated: 2025-11-04 00:31In the Linux kernel, the following vulnerability has been resolved:
ASoC: fsl-asoc-card: set priv->pdev before using it
priv->pdev pointer was set after being used in fsl_asoc_card_audmux_init(). Move this assignment at the start of the probe function, so sub-functions can correctly use pdev through priv.
fsl_asoc_card_audmux_init() dereferences priv->pdev to get access to the dev struct, used with dev_err macros. As priv is zero-initialised, there would be a NULL pointer dereference. Note that if priv->dev is dereferenced before assignment but never used, for example if there is no error to be printed, the driver won't crash probably due to compiler optimisations.
{
"affected": [],
"aliases": [
"CVE-2024-42089"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-29T17:15:11Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: fsl-asoc-card: set priv-\u003epdev before using it\n\npriv-\u003epdev pointer was set after being used in\nfsl_asoc_card_audmux_init().\nMove this assignment at the start of the probe function, so\nsub-functions can correctly use pdev through priv.\n\nfsl_asoc_card_audmux_init() dereferences priv-\u003epdev to get access to the\ndev struct, used with dev_err macros.\nAs priv is zero-initialised, there would be a NULL pointer dereference.\nNote that if priv-\u003edev is dereferenced before assignment but never used,\nfor example if there is no error to be printed, the driver won\u0027t crash\nprobably due to compiler optimisations.",
"id": "GHSA-fphh-62qm-fm76",
"modified": "2025-11-04T00:31:05Z",
"published": "2024-07-29T18:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42089"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/29bc9e7c75398b0d12fc30955f2e9b2dd29ffaed"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3662eb2170e59b58ad479982dc1084889ba757b9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/544ab46b7ece6d6bebbdee5d5659c0a0f804a99a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7c18b4d89ff9c810b6e562408afda5ce165c4ea6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8896e18b7c366f8faf9344abfd0971435f1c723a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8faf91e58425c2f6ce773250dfd995f1c2d461ac"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/90f3feb24172185f1832636264943e8b5e289245"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ae81535ce2503aabc4adab3472f4338070cdeb6a"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPJJ-MF6P-M5FM
Vulnerability from github – Published: 2023-03-01 15:30 – Updated: 2023-03-10 18:30libde265 v1.0.10 was discovered to contain a NULL pointer dereference in the put_unweighted_pred_16_fallback function at fallback-motion.cc. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input file.
{
"affected": [],
"aliases": [
"CVE-2023-24757"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-01T15:15:00Z",
"severity": "MODERATE"
},
"details": "libde265 v1.0.10 was discovered to contain a NULL pointer dereference in the put_unweighted_pred_16_fallback function at fallback-motion.cc. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input file.",
"id": "GHSA-fpjj-mf6p-m5fm",
"modified": "2023-03-10T18:30:20Z",
"published": "2023-03-01T15:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-24757"
},
{
"type": "WEB",
"url": "https://github.com/strukturag/libde265/issues/385"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00004.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPJM-89FW-5VC4
Vulnerability from github – Published: 2022-07-27 00:00 – Updated: 2022-07-29 00:00An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is NULL pointer dereference in exec_expr() in mjs.c.
{
"affected": [],
"aliases": [
"CVE-2021-33441"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-07-26T13:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is NULL pointer dereference in exec_expr() in mjs.c.",
"id": "GHSA-fpjm-89fw-5vc4",
"modified": "2022-07-29T00:00:26Z",
"published": "2022-07-27T00:00:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33441"
},
{
"type": "WEB",
"url": "https://github.com/cesanta/mjs/issues/165"
},
{
"type": "WEB",
"url": "https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPPC-FJQW-6GX5
Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2024-10-25 15:31In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Check null pointers before using them
[WHAT & HOW] These pointers are null checked previously in the same function, indicating they might be null as reported by Coverity. As a result, they need to be checked when used again.
This fixes 3 FORWARD_NULL issue reported by Coverity.
{
"affected": [],
"aliases": [
"CVE-2024-49922"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T18:15:14Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check null pointers before using them\n\n[WHAT \u0026 HOW]\nThese pointers are null checked previously in the same function,\nindicating they might be null as reported by Coverity. As a result,\nthey need to be checked when used again.\n\nThis fixes 3 FORWARD_NULL issue reported by Coverity.",
"id": "GHSA-fppc-fjqw-6gx5",
"modified": "2024-10-25T15:31:25Z",
"published": "2024-10-21T18:30:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49922"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1ff12bcd7deaeed25efb5120433c6a45dd5504a8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e9386baa3033c369564d55de4bab62423e8a1d3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/65e1d2c291553ef3f433a0b7109cc3002a5f40ae"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPR2-PGQ7-QWG4
Vulnerability from github – Published: 2025-07-25 15:30 – Updated: 2026-05-19 15:31A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash.
{
"affected": [],
"aliases": [
"CVE-2025-8114"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-24T15:15:27Z",
"severity": "MODERATE"
},
"details": "A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash.",
"id": "GHSA-fpr2-pgq7-qwg4",
"modified": "2026-05-19T15:31:19Z",
"published": "2025-07-25T15:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8114"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:18683"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-8114"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383220"
},
{
"type": "WEB",
"url": "https://git.libssh.org/projects/libssh.git/commit/?id=53ac23ded4cb2c5463f6c4cd1525331bd578812d"
},
{
"type": "WEB",
"url": "https://git.libssh.org/projects/libssh.git/commit/?id=65f363c9"
},
{
"type": "WEB",
"url": "https://www.libssh.org/security/advisories/CVE-2025-8114.txt"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPWM-R92Q-HVJC
Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-05-07 15:31In the Linux kernel, the following vulnerability has been resolved:
can: af_can: fix NULL pointer dereference in can_rx_register()
It causes NULL pointer dereference when testing as following: (a) use syscall(__NR_socket, 0x10ul, 3ul, 0) to create netlink socket. (b) use syscall(__NR_sendmsg, ...) to create bond link device and vxcan link device, and bind vxcan device to bond device (can also use ifenslave command to bind vxcan device to bond device). (c) use syscall(__NR_socket, 0x1dul, 3ul, 1) to create CAN socket. (d) use syscall(__NR_bind, ...) to bind the bond device to CAN socket.
The bond device invokes the can-raw protocol registration interface to receive CAN packets. However, ml_priv is not allocated to the dev, dev_rcv_lists is assigned to NULL in can_rx_register(). In this case, it will occur the NULL pointer dereference issue.
The following is the stack information: BUG: kernel NULL pointer dereference, address: 0000000000000008 PGD 122a4067 P4D 122a4067 PUD 1223c067 PMD 0 Oops: 0000 [#1] PREEMPT SMP RIP: 0010:can_rx_register+0x12d/0x1e0 Call Trace: raw_enable_filters+0x8d/0x120 raw_enable_allfilters+0x3b/0x130 raw_bind+0x118/0x4f0 __sys_bind+0x163/0x1a0 __x64_sys_bind+0x1e/0x30 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
{
"affected": [],
"aliases": [
"CVE-2022-49863"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T15:16:11Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: af_can: fix NULL pointer dereference in can_rx_register()\n\nIt causes NULL pointer dereference when testing as following:\n(a) use syscall(__NR_socket, 0x10ul, 3ul, 0) to create netlink socket.\n(b) use syscall(__NR_sendmsg, ...) to create bond link device and vxcan\n link device, and bind vxcan device to bond device (can also use\n ifenslave command to bind vxcan device to bond device).\n(c) use syscall(__NR_socket, 0x1dul, 3ul, 1) to create CAN socket.\n(d) use syscall(__NR_bind, ...) to bind the bond device to CAN socket.\n\nThe bond device invokes the can-raw protocol registration interface to\nreceive CAN packets. However, ml_priv is not allocated to the dev,\ndev_rcv_lists is assigned to NULL in can_rx_register(). In this case,\nit will occur the NULL pointer dereference issue.\n\nThe following is the stack information:\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nPGD 122a4067 P4D 122a4067 PUD 1223c067 PMD 0\nOops: 0000 [#1] PREEMPT SMP\nRIP: 0010:can_rx_register+0x12d/0x1e0\nCall Trace:\n\u003cTASK\u003e\nraw_enable_filters+0x8d/0x120\nraw_enable_allfilters+0x3b/0x130\nraw_bind+0x118/0x4f0\n__sys_bind+0x163/0x1a0\n__x64_sys_bind+0x1e/0x30\ndo_syscall_64+0x35/0x80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\u003c/TASK\u003e",
"id": "GHSA-fpwm-r92q-hvjc",
"modified": "2025-05-07T15:31:25Z",
"published": "2025-05-01T15:31:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49863"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/261178a1c2623077d62e374a75c195e6c99a6f05"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8aa59e355949442c408408c2d836e561794c40a1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a8055677b054bc2bb78beb1080fdc2dc5158c2fe"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/afab4655750fcb3fca359bc7d7214e3d634cdf9c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d68fa77ee3d03bad6fe84e89759ddf7005f9e9c6"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-56
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Select a programming language that is not susceptible to these issues.
Mitigation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.